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Related-Party Transactions (Tables) | 9 Months Ended
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Sep. 30, 2018
Virginia Electric and Power Company |
Related Party Transaction [Line Items] |
Schedule of Related Party Transactions | Presented below are Virginia Power’s significant transactions with DES and other affiliates:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity purchases from affiliates |  | $ | 196 |  |  | $ | 170 |  |  | $ | 733 |  |  | $ | 519 |
Services provided by affiliates(1) |  |  | 106 |  |  |  | 109 |  |  |  | 338 |  |  |  | 333 |
Services provided to affiliates |  |  | 6 |  |  |  | 5 |  |  |  | 17 |  |  |  | 17 |
(1) | Includes capitalized expenditures of $34 million and $33 million for the three months ended September 30, 2018 and 2017, respectively, and $109 million and $104 million for the nine months ended September 30, 2018 and 2017, respectively.
Dominion Energy Gas Holdings, LLC |
Related Party Transaction [Line Items] |
Schedule of Related Party Transactions | Presented below are Dominion Energy Gas’ significant transactions with DES and other affiliates and related parties:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales of natural gas and transportation and storage services to affiliates |  | $ | 17 |  |  | $ | 15 |  |  | $ | 51 |  |  | $ | 51 |
Purchases of natural gas from affiliates |  |  | 1 |  |  |  | 2 |  |  |  | 2 |  |  |  | 4 |
Services provided by related parties(1) |  |  | 32 |  |  |  | 36 |  |  |  | 98 |  |  |  | 106 |
Services provided to related parties(2) |  |  | 53 |  |  |  | 37 |  |  |  | 166 |  |  |  | 113 |
(1) | Includes capitalized expenditures of $10 million and $13 million for the three months ended September 30, 2018 and 2017, respectively, and $27 million and $33 million for the nine months ended September 30, 2018 and 2017, respectively.
(2) | Amounts primarily attributable to Atlantic Coast Pipeline, a related-party VIE.
Schedule of Related Party Transactions | The following table presents affiliated and related party balances reflected in Dominion Energy Gas’ Consolidated Balance Sheets:
|  | September 30, 2018 |  |  | December 31, 2017 |
(millions) |  |  |  |  |  |  |  |
Other receivables(1) |  | $ | 15 |  |  | $ | 12 |
Customer receivables from related parties |  |  | 1 |  |  |  | 1 |
Imbalances receivable from affiliates |  |  | — |  |  |  | 1 |
Imbalances payable to affiliates(2) |  |  | 7 |  |  |  | — |
Affiliated notes receivable(3) |  |  | 17 |  |  |  | 20 |
(1) | Represents amounts due from Atlantic Coast Pipeline, a related-party VIE.
(2) | Amounts are presented in other current liabilities in Dominion Energy Gas’ Consolidated Balance Sheets.
(3) | Amounts are presented in other deferred charges and other assets in Dominion Energy Gas’ Consolidated Balance Sheets.

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- Definition Schedule of related party transactions and other affiliates and related parties. + References No definition available. + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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